minor #11191 fix indention (OskarStark)

This PR was merged into the 3.4 branch.

Discussion
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fix indention

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Commits
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6f18433 fix indention

Author: javiereguiluz

components/config/definition.rst

@@ -483,7 +483,7 @@ In YAML you may have:
 .. code-block:: yaml
 
     # This value is only used for the search results page.
-    entries_per_page:     25
+    entries_per_page: 25
 
 and in XML: